All Crystals A-Z
Browse our complete database of 539 crystals, minerals, and gemstones
A crystal index sounds boring. Until you’re holding a tray of “green stuff” and you realize half of it could be something else. So that’s what this page is for: one clean A–Z list of every crystal in this wiki, 539 entries total, from actinolite and adamite all the way down the alphabet.
Pick up a few different specimens and patterns show up fast. Some stones feel icy-cool and heavy for their size (lots of sulfides and oxides do that). But others feel weirdly light and chalky in the hand, like certain hydrated minerals that don’t love humidity. I’ve had soft pieces come in looking great, then show edge dings after a single weekend in a pocket tray. It happens.
Use this index as a jump-off point. Click a name when you want the basics, then hop between similar species when you’re trying to confirm an ID. Thing is, crystal names get messy because trade names and typos spread faster than good labels. And you’ll see stuff sold as one thing that’s really another, especially with green feldspars, “citrines,” and anything that looks like it could pass as quartz from three feet away.
If you’re shopping, keep this page open while you browse listings. Compare photos, check hardness and cleavage notes, and don’t ignore the boring details like streak, heft, and whether a specimen feels waxy, gritty, or glassy when you tilt it under a desk lamp. Those little tells save money. This list includes classics, oddballs, and plenty of hyphenated trade names too (yes, like agni-manitite-pearl-of-the-divine-fire), because collectors run into them in the real world even when geology doesn’t love the branding.